PORSCHE RACING HISTORYChassis No. 911 560 9121
23 March 1975 - Mugello 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 Carrera RSR | 911 560 9121 | GT | Hartwig Bertrams (D)/Clemens Schickentanz (D)/Reine Wisell (S) | Tebernum Porsche Racing (D) | 12th | 4th | 25th | 131 laps |
6 April 1975 - Dijon 800 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 911 Carrera RSR | 911 560 9121 | GT | Clemens Schickentanz (D)/Hartwig Bertrams (D)/Reine Wisell (S) | Tebernum Porsche Racing (D) | 7th | 2nd | 19th | 218 laps |
20 April 1975 - Monza 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 81 | Porsche 911 Carrera RSR | 911 560 9121 | S3.0 | Clemens Schickentanz (D)/Hartwig Bertrams (D)/Reine Wisell (S) | Tebernum Porsche Racing Team (D) | 9th | 7th | 31st | 154 laps |
4 May 1975 - Spa 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 40 | Porsche 911 Carrera RSR | 911 560 9121 | GT | Hartwig Bertrams (D)/Reine Wisell (S) | Tebernum Racing (D) | 8th | 4th | 28th | 47 laps |
18 May 1975 - Coppa Florio - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 48 | Porsche 911 Carrera RSR | 911 560 9121 | GT | Hartwig Bertrams (D)/Clemens Schickentanz (D)/Reine Wisell (S) | Tebernum Porsche Racing Team (D) | 4th | 1st | 12th | 182 laps |
1 June 1975 - Nürburgring 1000 Km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 911 Carrera RSR | 911 560 9121 | GT+1.6 | Hartwig Bertrams (D)/Clemens Schickentanz (D)/Reine Wisell (S) | Tebernum-Porsche-Racing-Team (D) | DNF | 38th | 13 laps - DNF |
8 June 1975 - DRM Hockenheim Rhein-Pokal - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 52 | Porsche 911 Carrera RSR | 911 560 9121 | Div.I | Hartwig Bertrams (D) | Tebernum Porsche Racing Team (D) | 5th | 5th | 110th | 20 laps |
15 June 1975 - Le Mans 24 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 16 | Porsche 911 Carrera RSR | 911 560 9121 | GTS | Clemens Schickentanz (D)/Hartwig Bertrams (D) | Joest Racing (D) | DNF | 16th | 42 laps - Engine |
29 June 1975 - European GT Championship Norisring - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 911 Carrera RSR | 911 560 9121 | GT3.0 | Reine Wisell (S) | Tebernum Porsche (D) | ? |
17 August 1975 - DRM Kassel-Calden - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 64 | Porsche 911 Carrera RSR | 911 560 9121 | Div.1 | Clemens Schickentanz (D) | Tebernum Porsche Racing Team (D) | 4th | 4th | 9th | 40 laps |
19 October 1975 - Zolder [GT/T+2.0] - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 911 Carrera RSR | 911 560 9121 | T/GT+2.0 | Clemens Schickentanz (D) | Tebernum-Porsche-Racing-Team (D) | 2nd | 2nd |
13 June 1976 - Le Mans 24 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 911 Carrera RSR | 911 560 9121 | GP.5 | Clemens Schickentanz (D)/Howden Ganley (NZ) | Gelo Racing Team (D) | DNF | 40th | 74 laps - Transmission |
30 April 1978 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 11th | 2nd | 17th | 49 laps |
7 May 1978 - Hallett 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 6th | 2nd | 9th | 51 laps |
29 May 1978 - Lime Rock 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 11th | 3rd | 14th | 61 laps |
18 June 1978 - Brainerd 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 26th | 12th | 11th | 25 laps - DNF |
30 July 1978 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 6th | 1st | 11th | 38 laps |
6 August 1978 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 18th | 10th | 8th | 27 laps DNF |
27 August 1978 - Mid Ohio 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA)/Rick Knoop (USA) | 11th | 4th | 11th | 97 laps |
4 September 1978 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | Andial Porsche-Meister Homes | 8th | 1st | 20th | 38 laps |
8 April 1979 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | Alan Johnson Racing/Meister Homes | 5th | 1st | 16th | 38 laps |
22 April 1979 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA)/Rick Knoop (USA) | Alan L. Johnson | 22nd | 5th | 16th | 166 laps - DNF |
29 April 1979 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 6th | 1st | 9th | 49 laps |
13 May 1979 - Hallett 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 8th | 1st | 9th | 52 laps |
28 May 1979 - Lime Rock 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 5th | 1st | 13th | 62 laps |
17 June 1979 - Brainerd 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 9th | 1st | 11th | 32 laps |
4 July 1979 - Daytona Paul Revere 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 6th | 3rd | 34th | 60 laps |
15 July 1979 - Mid-Ohio 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA)/Alan Johnson (2) (USA) | 6th | 1st | 9th | 98 laps |
29 July 1979 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 6th | 1st | 18th | 39 laps |
5 August 1979 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Howard Meister (USA) | 13th | 3rd | 16th | 48 laps |
27 July 1980 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Pete Smith (USA) | 11th | 4th | 27th | 36 laps |
3 August 1980 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Pete Smith (USA) | 14th | 6th | 18th | 48 laps |
1 February 1981 - Daytona 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Pete Smith (USA)/Chuck Kendall (USA)/Steve Earle (USA) | Chuck Kendall (USA) | 12th | 2nd | 38th | 585 laps |
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Chuck Kendall (USA)/Pete Smith (USA)/Dennis Aase (USA) | Charles Kendall (USA) | 5th | 1st | 19th | 218 laps |
26 April 1981 - Riverside 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Alan Johnson (2) (USA)/Chuck Kendall (USA) | Kendall Racing (USA) | 48th | 15th | 25th | 30 laps - DNF |
26 July 1981 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Chuck Kendall (USA) | Kendall Racing (USA) | 14th | 7th | 28th | 30 laps |
2 August 1981 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 560 9121 | GTO | Chuck Kendall (USA) | Chuck Kendall (USA) | 18th | 11th | 23rd | 44 laps |